Fireproof floor



R. A. KINKELE.

(No Model.)

FIREPROQF FLOOR.

Patented Oct. 19,

I? "W" Q E a 0 WITNESSES. 5

llN rED STATE-s FFrcE.

' ra-NT I Fi EeRooF FLOOR-.-

SPECIFICATION forrxiing part of Letters P atent No. 592,117, dated October 19, 1897. Application filed February 2'7, 1897. Serial No. 625,262. (No model.)

To all whom, it may concern.-

Be it known that 1, ROBERT A KINKELE, a citizen'of the United States, residing at'Stapleton, in the county of Richmond and State ,of New York, have inventedcertain new and useful Improvements in Fireproof Floors, of which the following is a specification.

The present invention relates to an im proved construction of fireproof floor, being especially an improvement over the invention of R. A. Kinkele and Charles L. Wolff, covered by Patent No. 566,189, dated August 18, 1896. The invention is designed with a view to greater strength to withstand compressive strains and to provide for safety in case of overloading; In said patent the supporting-blocksthat is to say, ceiling-'- blocksrested themselves directly on the bottom flanges of the beam and received the weight of the floor or filling blocks. mostly upon their ends, while in the present invention the ceiling-blocks, strictly speaking, do not act as supports for the ordinaryweight namely, two end sections and a central or key.

section-while the upper and opposite side portions of the adjacent blocks,so constructed, are flattened and widened so as to abut'and vform a substantial floor-support. g

'In the accompanying drawings, Figure '1 is,

a perspective view of my improved fireproof floor. Fig. 2 is aside elevation with the supporting-beamsin section. Fig. 3 is a broken side elevation of a floor-block. Fig. 4 is an end elevation of a floor-block and two skewbacks, showing their'relative positions in the floor. Fig. 5 is a transverse section on line 5 5, Fig. 2.

Similar letters of reference indicate corresponding parts.

, A A represent the I-bcams or angle-irons,

on the flanges 64 of which the partscomposing my improved fireproof-floor construction are supported;

same contour in cross-secti0n--namely, po-

lygonal-so that the skewbacks or blocks each have a flat bottom Z), parallel widened and flattened sides I) b, ext-ending at right angles to the botto1n b,'and at the upper, part con-' verging or inclined sides 6 b while the ceiling-blocks have a flat bottom 0, flattened sides 0 O and converging or inclined upper sides 0 C of which 0' 0 correspond with b b, C C with-b b, and O O with 19 6 respectively, of the skewbacks. The floorblocks D have flat tops 61 parallel widened and flattened sides ,d 01 and converging or inclined under sides d cl. V

The skewbacks or blocks are provided at their lower or base portions with transverse end recesses t which receive the lower flange a of the I-beams A and support the skewbacks and the ceiling-blocks O, which are ar.

ranged between them. The adjacent or abutting ends or faces of the skewbacks or blocks and the ceiling-blocks are inclined or slantin g, so that the ceiling-blocks will besupported against the skewbacks, While the weight of the ceiling-blocks will force the skewbacks and ceilingblocks outwardly against the beams. Lateral thrust is prevented by arranging the parallellower sidesof the skewbacks and ceiling-blocks in one line in con .tact with those on the nextline The angular spaces between the inclined I surfaces of the skewbacks and ceiling-blocks receive the floor or filling blocks D, which are arched underneath so as to impart greater strength, and which rest at their outer ends upon the inclined surfaces 19 of the skewbacks B. The end sections of the floor-blocks are forced in contact with the Webs of the beams A by means of the interposed keys 01, so that each floor-block is self-sustaining, its ordinary points of support being upon the skewbaeks. The effect of this is that a fireproof floor is produced which is independent of the ceiling-blocks, and these are, however, of great importance when an extraordinary weight suiiicient to crush each single arch floor-block is imposed on the latter, as then the center of the floor-block rests upon the ceiling-blocks, whereby the structure is prevented from falling. The extra weight imparted to the ceiling-blocks really tends to make the structure less dangerous than otherwise, as the skewbacks are thereby more firmly thrust against the supporting-beams.

The joints are cemented up in a suitable manner, and the floor-blocks can be made hollow in the form shown or in any other suitable manner.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. A fireproof floor, consisting of a series of skewbacks or blocks, a series of ceilingbloeks supported by and between the same, and a series of floor-blocks, arranged to alternate with the skewbaeks and ceiling-blocks, and being normally supported from the ends, by the skewbacks, whereby the normal load is transferred directly to the skewbacks, substantially as set forth.

2. A fireproof floor, consisting of flanged supportingbeams, recessed skewbaeks or blocks, the recesses of which receive the flanges of the beams, a series of ceiling-blocks supgorted by and between the skewbacks, and a series of floor-blocks, arranged to alternate with the skewbacks and ceiling-blocks, and being normally supported from the ends, by the skewbacks, substantially as set forth.

3. A fireproof floor, consisting of a series of skewbaeks or blocks, a series of ceilingblocks supported by and between the same, and aseries of floor-blocks, arranged to alternate with the skewbacks and ceiling-blocks, said floor-blocks having approximately parallel sides at their upper parts and converging under sides, substantially as set forth.

4. A fireproof floor, consisting of a series of skewbacks or blocks, and a series of floorblocks arranged to alternate with the skewbacks, and the meeting surfaces of the skewbacks and floor-blocks converging, so that the floor-blocks are normally supported from the ends, by the skewbaeks, whereby the normal load is transferred directly to the skewbaeks, substantially as set forth.

In testimony that -I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

ROBERT A. KINKELE.

\Vitnesses:

Gno. L. WHEELooK, GEo. XV. JAEKEL. 

